The acetylated derivative of salicylic acid; used as an analgesic anti-inflammatory drug (trade names Bayer, Empirin, and St. Joseph) usually taken in tablet form; used as an antipyretic; slows clotting of the blood by poisoning platelets.

synonyms: acetylsalicylic acid, Bayer, Empirin, St. Joseph.

Dutch: acetylsalicylzuur, aspirientje, aspirine
Polish: polopiryna, aspiryna